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--- ABDH Media - Space --- “Mars once was wet and fertile. It’s now bone dry. Something bad happened on Mars. I want to know what happened on Mars so that we may prevent it from happening here on Earth.” –Neil deGrasse Tyson

Oh, it’s true alright, something bad did once happen on Mars. And although there isn’t any real danger of that happening to Earth, a little conversation I had earlier this week made me think that it’s time to tell all of you a story about our red neighbor, and why it is the way it is today.

You see, when we think about Mars, we think about the smallish, red, desolate world that fascinates us today. We mostly think about the tremendous impact craters, the large mountains and the dry, rocky terrain. But Mars wasn’t always this way, and we know it. There are clues to that, even today. Aerial views from orbiting spacecraft show us phenomena like dried up riverbeds with oxbow bends in them,